{"id":"CVE-2026-111337","state":"PUBLISHED","title":"Memory overflow in Base64 decoding in advanced policy expressions leading to unpredictable or erroneous behavior or Denial of Service in Citrix NetScaler ADC and Citrix NetScaler Gateway","description":"Memory overflow in Base64 decoding in advanced policy expressions leading to unpredictable or erroneous behavior or Denial of Service in Citrix NetScaler ADC and Citrix NetScaler Gateway.","publishedAt":"2026-11-13T07:40:20.685Z","updatedAt":"2026-11-13T07:40:20.685Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:L/SI:L/SA:L","source":"NetScaler"},"assigner":"NetScaler","products":["Citrix NetScaler ADC","Citrix NetScaler Gateway"],"affected":[{"vendor":"Citrix","product":"NetScaler ADC","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"14.1-73.57","versionType":"patch"},{"version":"0","status":"affected","lessThan":"13.1-64.39","versionType":"patch"},{"version":"0","status":"affected","lessThan":"14.1-73.58 FIPS","versionType":"patch"},{"version":"0","status":"affected","lessThan":"13.1-37.293 FIPs and NDcPP","versionType":"patch"}]},{"vendor":"Citrix","product":"NetScaler Gateway","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"14.1-73.57","versionType":"patch"},{"version":"0","status":"affected","lessThan":"13.1-64.39","versionType":"patch"}]}],"references":["https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697305"],"weaknesses":[],"ingestedAt":"2026-11-13T07:44:06.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/111xxx/CVE-2026-111337.json","commit":"c0c8c4ba66c9a2b1de782dfd3004c8947948bced","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-111337","state":"PUBLISHED","datePublished":"2026-11-13T07:40:20.685Z","dateUpdated":"2026-11-13T07:40:20.685Z","assignerShortName":"NetScaler","assignerOrgId":"50a63c94-1ea7-4568-8c11-eb79e7c5a2b5","dateReserved":"2026-10-15T20:47:37.489Z"},"containers":{"cna":{"title":"Memory overflow in Base64 decoding in advanced policy expressions leading to unpredictable or erroneous behavior or Denial of Service in Citrix NetScaler ADC and Citrix NetScaler Gateway","descriptions":[{"lang":"en","value":"Memory overflow in Base64 decoding in advanced policy expressions leading to unpredictable or erroneous behavior or Denial of Service in Citrix NetScaler ADC and Citrix NetScaler Gateway."}],"affected":[{"vendor":"Citrix","product":"NetScaler ADC","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"14.1-73.57","versionType":"patch"},{"version":"0","status":"affected","lessThan":"13.1-64.39","versionType":"patch"},{"version":"0","status":"affected","lessThan":"14.1-73.58 FIPS","versionType":"patch"},{"version":"0","status":"affected","lessThan":"13.1-37.293 FIPs and NDcPP","versionType":"patch"}]},{"vendor":"Citrix","product":"NetScaler Gateway","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"14.1-73.57","versionType":"patch"},{"version":"0","status":"affected","lessThan":"13.1-64.39","versionType":"patch"}]}],"references":[{"url":"https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX697305"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","subIntegrityImpact":"LOW","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"LOW","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"HIGH","baseScore":8.7,"vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:L/SI:L/SA:L"}}],"providerMetadata":{"shortName":"NetScaler","orgId":"50a63c94-1ea7-4568-8c11-eb79e7c5a2b5","dateUpdated":"2026-11-13T07:40:20.685Z"},"datePublic":"2026-11-12T23:05:00.000Z","source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.5"}}}}}